1.MECHANISM OF INSULIN RESISTANCE IN PATIENTS WITH IMPAIRED GLUCOSE TOLERANCE AND TYPE II DIABETES MELLITUS
Hong XIA ; Jiawei CHEN ; Jie SHEN
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Insulin sensitivity index (SI).glucose effectiveness (SG) and insulin secretion function were assessed by modified minimal model method (MMM) with frequently sampled intravenous glucose tolerance (FSIGT) test in the controls, in patients with impaired glucose tolerance (IGT), and type II diabetes mellitus (NIDDM). There was significant correlation between modified MMM and standard MMM in evaluating SI and SG. The results indicated that SI and SG were significantly elevated in the control than in the IGT and NTDDM groups. SI diminished much more in IGT group than in NIDDM group (P
2.Clinical and imaging features and infarct pattern analysis in patients with middle cerebral artery stenosis and occlusion
Yong SHAO ; Jie CHANG ; Zhenfang ZHU ; Hong SHEN
Chinese Journal of Primary Medicine and Pharmacy 2011;18(19):2629-2631
ObjectiveTo evaluate the clinical and imaging features and infarct pattern in patients with middle cerebral artery(MCA) stenosis and occlusion,to clarify its infarct pathogenesis. Methods35 MCA moderate and severe stenosis or occlusion patients diagnosed by TCD were studied;the clinical and imaging features and infarct pattern were retrospectively analyzed. Results( 1 ) Clinical features :The clinical manifestations of 35 patients was hemiplegia symptoms,in which 16 cases(45.7% ) involved to the face,upper and lower limb,11 cases(31.4% ) involved to the upper and lower limb,3 cases(8.6% ) involved to the facial and upper limb,2 cases(5.7% ) involved only to the facial,2 cases(5.7% ) involved to the facial and upper limb,1 cases(2.9% ) involved only to the upper limb. (2) MRA imaging characteristics and infarct pattern: 29 cases ( 82.9% ) of patients with stenosis or occlusion showed moderate severe stenosis,6 cases( 17.1% ) showed MCA occlusion. 30 cases( 85.7% ) showed ischemic infarction,in which perforating artery infarction was the most common infarct pattern of middle cerebral artery stenosis or occlusive patients( 53.3% ) ,followed by water-shed infarct ( 26. 7) %, pial infarct was ielatively small (20. 0% ). ConclusionThe hemiplegia was the most common clinical symptoms in patients with MCA stenosis and occlusion, and mainly involves to the face,upper and lower limb;The perforating artery infarction was the most common infarct pattern,and its infarct mechanism was an artery-to-artery embolism or hemodynamic abnormalities.
3.Protective Effect of Propofol on the Peroxidative Injured Erythrocyte
Jie SHEN ; Hong ZHAO ; Li LI ; Zhenyuan QIN
Journal of China Medical University 2001;30(2):98-100
Objective: Our aim was to observe the protective effect of propofol in clinical relevant concentration on the peroxidative injured erythrocyte. Methods: Intravenous blood samples taken from 20 healthy adults were prepared for red blood cell (RBC) suspensions and divided equally into 5 groups: groupⅠfor control, group Ⅱ with hydrogen peroxide (H2O2, 100 mmol/L) -induced injury, and group Ⅲ, Ⅳ, Ⅴ with the same injury as the group Ⅱ but being pretreated with 3 different concentrations of propofol (25, 50, 75 μmol/L), respectively. The concentrations of potassium and malondialdehyde (MDA) in RBC suspensions and hemolytic degree after incubation were measured. Results: After 60-minute incubation, the extracellular potassium concentrations (0.16, 0.14, 0.14 mmol/L), MDA concentrations (5.66, 5.57, 6.20 nmol/L), and hemolytic degree (76.89%, 59.84%, 64.22%) decreased significantly in the groups that were pretreated with propofol as compared with the group Ⅱ (0.26 mmol/L, 9.19 nmol/L, and 100%), but no difference has been seen within the groups pretreated with 3 different concentrations of propofol and between the propofol-treated groups and the group Ⅰ(0.10 mmol/L, 4.13 nmol/L, 52.73%). Conclusion: Propofol in clinical relevant concentrations may decrease MDA production, hemolytic degree, and potassium exflux from erythrocyte in response to in vitro oxidative challenge with hydrogen peroxide and enhance erythrocyte antioxidant capacity. The protective effect is not related with concentrations.
4.Long-term effect on the treatment of early chronic angle-closure glaucoma in two kinds of surgical method
Ai-Jun, SHEN ; Yong-Jie, GAO ; Yan-Hong, JIA
International Eye Science 2015;(5):895-897
?AlM: To evaluate the long - term effects of laser peripheral iridectomy ( LPl ) and trabeculectomy in treating early chronic angle-closure glaucoma.
?METHODS: Ninety-eight patients (102 eyes) with early chronic primary angle-closure glaucoma were randomly divided into two groups. Group A of 50 patients (54 eyes) was treated with LPl and group B of 48 patients (48 eyes) with trabeculectomy. After 3 - 8y of follow - up observation, comparison would be made from the perspectives of postoperative eyesight, intraocular pressure, anterior chamber angle, visual field and cup/disc ratio ( C/D) .
?RESULTS:ln group A, 24 eyes with eyesight declining, 22 eyes with theintraocular pressure>21mmHg (1mmHg=0. 133kPa), 21 eyes with chamber angle synechia >180o, 21 eyes with visual field narrowed, 21 eyes with C/D ratio enlarged. The results of group B for the same items were 10, 5, 4, 4, 4 eyes respectively. The comparative difference was statistically significant (P<0. 05).
?CONCLUSlON:Good effects will be achieved for early-stage chronic angle - closure glaucoma with surgical method. Trabeculectomy is obviously better than LPl for the long-term effects.
5.Application of MRI in severity grading and activity staging in thyroid associated ophthalmopathy
Qingshan HONG ; Jie SHEN ; Yaoming XUE ; Yanping CHEN ; Zhichun UN
Chinese Journal of Endocrinology and Metabolism 2010;26(3):215-216
The influence of MRI on severity grading and activity staging in thyroid associated ophthalmopathy (TAO) was evaluated.The results showed that MRI had a higher detection rate in abnormal extraocular muscle than NOSPECS scores(χ~2 = 19.37,P = 0.000).MRI had higher sensitivity,specificity,and accuracy in detection of active TAO than clinical activity score (100% vs 95.7%,88.2% vs 35.3%,96.9% vs 79.7%,respectively).Therefore,MRI improves early detection of atypical grade 4 cases.Signal intensity elevation in adipose suppressed T2WI is helpful to define active stage.
6.Value of stereotactic radiosurgery in patients with multiple brain metastases
Jie CHEN ; Zhiguo LIN ; Qingguo LI ; Hong SHEN
Chinese Journal of Radiation Oncology 1992;0(04):-
Objective To analyze the prognostic factors and evaluate the effect of stereotactic radiosurgery for patients with multiple brain metastases. Methods Comparison was made in 53 such patients treated by stereotactic radiosurgery plus radiotherapy and 53 treated by radiotherapy alone. Patients were matched paired according to the following criteria: age, Karnofsky performance scale(KPS) before treatment, extent of systemic cancer and number of brain metastasis.Fourty patients had stereotactic radiosurgery, 13 patients stereotactic fractionated radiosurgery. In the stereotactic radiosurgery group, the patients were given a mean marginal dose of 20?Gy. Methods of stereotactic fractionated radiosurgery was 4 12?Gy per fraction, twice a week to a total dose of 15 30?Gy. Whole brain radiotherapy was given immediately after stereotactic radiosurgery. For patients treated by radiotherapy alone, the entire brain was treated by 30 40?Gy in 3 4 weeks. Results The median survival was 11.6 months in stereotactic radiosurgery plus radiotherapy and 6.7 months in radiotherapy alone. The one year survival rate and one year local control rate were 44.3%,17.1% and 50.9%,13.2%. Those with KPS increased after treatment gave 1 year survivals of 69.8% and 30.2%, respectively. The validity rates in CT or MRI three months after treatment were 82.0% and 55.0%.The difference in the two groups was found to be statistically significant (P
7.Discussion on research and development of new traditional Chinese medicine preparation process based on idea of QbD.
Yi FENG ; Yan-Long HONG ; Jie-Chen XIAN ; Ruo-Fei DU ; Li-Jie ZHAO ; Lan SHEN
China Journal of Chinese Materia Medica 2014;39(17):3404-3408
Traditional processes are mostly adopted in traditional Chinese medicine (TCM) preparation production and the quality of products is mostly controlled by terminal. Potential problems of the production in the process are unpredictable and is relied on experience in most cases. Therefore, it is hard to find the key points affecting the preparation process and quality control. A pattern of research and development of traditional Chinese medicine preparation process based on the idea of Quality by Design (QbD) was proposed after introducing the latest research achievement. Basic theories of micromeritics and rheology were used to characterize the physical property of TCM raw material. TCM preparation process was designed in a more scientific and rational way by studying the correlation among enhancing physical property of raw material, preparation process and product quality of preparation. So factors affecting the quality of TCM production would be found out and problems that might occur in the pilot process could be predicted. It would be a foundation for the R&D and production of TCM preparation as well as support for the "process control" of TCMIs gradually realized in the future.
Drug Compounding
;
methods
;
standards
;
Drugs, Chinese Herbal
;
chemistry
;
isolation & purification
;
standards
;
Humans
;
Medicine, Chinese Traditional
;
standards
;
trends
;
Quality Control
;
Research
;
standards
;
trends
;
Research Design
;
standards
;
Technology, Pharmaceutical
;
instrumentation
;
methods
;
standards
8.Application of European position paper on rhinosinusitis and nasal polyps in clinical teaching for Otorhinolaryngology postgraduates
Yucheng YANG ; Suling HONG ; Jiangju HUANG ; Xia KE ; Jie LIU ; Yang SHEN ; Guohua HU
Chinese Journal of Medical Education Research 2013;(5):449-452
Rhinosinusitis is a popular disease in otorhinolaryngology.A guideline document,European position paper on rhinosinusitis and nasal polyps (EPOS) developed on the basis of evidencebased medicine was used in clinical teaching.Theoretical teaching was promoted by reading and understanding EPOS.Meanwhile,EPOS was used in clinical practices of preclinical ward round,case analysis and independent bed charge,which laid a solid foundation to help otorhinolaryngology postgraduates fully grasp the theoretical knowledge of rhinosinusitis and nasal polyps,improve clinical practice abilities and develop standardized philosophy of diagnosis and treatment finally.
9.Serum level of 25-hydroxyvitamin D and its impact on glucose metabolism and bone mineral density in type 2 diabetic patients
Hong SHEN ; Minfeng GU ; Xiajuan WANG ; Jie XIANG ; Wenjun WU ; Ruifang PIAO
Clinical Medicine of China 2012;28(11):1152-1155
Objective To investigate the change of 25-hydroxyl vitamin D level and its impact on glucose metabolism and bone mineral density in type 2 diabetic patients.MethodsTwo hundred and fifty-eight cases of type 2 diabetic patients in our hospital were collected.In accordance with 25 (OH) D =50 nmol/L for the critical values,they were grouped into vitamin D deficiency group ( n =192) and the relative lack of vitamin D group ( n =66).Dual-energy X-ray absorptiometry (DXA) measurement of the lumbar vertebrae L2 - L4 and femoral neck bone mineral density were undertaking.Taking the total value of the lumbar spine,femoral neck and total value as judgment indicators,homeostasis model assessment of insulin resistance (HOMA-IR),we collected and statistically analyzed glucose metabolism and bone metabolism indicators in patients with diabetes.Results Among 258 cases of type 2 diabetes,there were 57 cases of osteoporosis accounting for 22.1%.There was significant difference on the duration of diabetes [ (7.98 ± 1.09 ) years old vs (3.77 ± 1.21 ) years old,t =4.849,P <0.05],FINS [ (6.42 ± 1.30) mU/L vs (5.79 ± 1.08) mU/L,t =3.871,P <0.05] and HOMA-IR [ (2.35 ±0.54) vs ( 1.85 ±0.41 ),t =2.705,P <0.05],but no significant difference on the FPG and HbA1c ( P > 0.05 ) between two groups.PTH [ ( 36.51 ± 7.59) ng/L vs ( 32.02 ± 6.89 ) ng/L,t =2.008,P < 0.05 ],bone mineral density in the lumbar total value [ (0.87 ±0.14) g/cm2 vs (0.99 ±0.12) g/cm2,t =2.799,P <0.05 ],femoral neck Neck [ ( 0.70 ± 0.10 ) g/cm2 vs ( 0.79 ± 0.11 ) g/cm2,t =2.564,P < 0.05 ] and Total [ (0.84 ± 0.14) g/cm2 vs (0.97 ± 0.15 ) g/cm2,t =3.340 P < 0.05 ] were statistically different,but no significant difference on the rest of the indicators.Conclusion The prevalence of vitamin D deficiency was found in patients with diabetes.Vitamin D level could affect insulin resistance and glycemic control and bone mineral density level.Therefore,routine vitamin D testing to the diabetic patients and giving vitamin D replacement therapy to vitamin D deficiency patients in a timely manner were necessary.
10.Serum concentrations of NSE and S100B in spinocerebellar ataxia type 3/Machado-Joseph disease
Jie ZHOU ; Lifang LEI ; Yuting SHI ; Junling WANG ; Hong JIANG ; Lu SHEN ; Beisha TANG
Journal of Central South University(Medical Sciences) 2011;36(6):504-510
Objective To determine the neuronal damage or loss and gliosis at the cellular level in spinocerebellar ataxia type 3/Machado-Joseph disease(SCA3/MJD), and evaluate the potential use of neuron-specific enolase (NSE) and protein S 100 B(S100B) serum concentrations as biochemical markers. Methods Serum concentrations of NSE and S100B were measured in 102 SCA3/MJD patients and 100 healthy subjects matched by sex and age. The correlations between both markers and age, age of onset, disease duration, CAG repeat size, scores of international cooperative ataxia rating scale(ICARS), and scale for the assessment and rating of ataxia(SARA) were analyzed. Results Compared with the healthy controls, patients with SCA3/MJD had higher NSE serum concentrations [(6.95±2.83)ng/mL vs (4.83±1.70) ng/mL, P<0.05] and higher S100B serum concentrations [(0.07±0.06) ng/mL vs (0.05±0.02) ng/mL, P<0.05]. In the SCA3/MJD patients group, NSE levels presented a positive correlation with age, disease duration, ICARS scores and SARA scores, whereas S100B levels did not correlate with age, age of onset, disease duration, ICARS scores and SARA scores. CAG repeat size did not correlate with the NSE levels and S100B levels in different age groups of SCA3/MJD patients. Conclusion Serum NSE might be a useful marker to monitor disease progression and represent the degree of severity of a certain disease. Elevated S100B serum concentrations in patients compared to healthy controls may suggest an application of this protein as a peripheral marker of brain impairment in SCA3/MJD.